Comment 4 for bug 39499

I think Frank and I are describing different problems -- he and I were discussing this on the ubuntu-users list and I asked him to add to my bug because he said he was having the same trouble I described, but it sounds like his hang is during startup; my hang is during shutdown. (Frank please confirm!)

I just added reboot=h temporarily to the kernel parameters in grub, and it still didn't power down when I chose the shutdown command.

It just occurred to me that a dmesg might be instructive, as well as the other items in https://wiki.ubuntu.com/DebuggingKernelProblems